BEF-China | CSPs: Distances between CSPs (in km) based on GPS information

Show: CSPs: Distances between CSPs (in km) based on GPS information

Title:

CSPs: Distances between CSPs (in km) based on GPS information

Access rights:

Free for public

Usage rights:

No information available

Published:

No information available

Abstract:

This dataset provides a distance matrix wich gives the distances between the CSPs in the Gutianshan National Nature reserve (29º8'18" – 29º17'29" N, 118º2'14" – 118º11'12" E, Zhejiang Province Southeast China). The distances are based on the spatial information available from the dataset "Comparative study plot (CSP) information to be shared with all BEF-China scientists" (http://china.befdata.biow.uni-leipzig.de/datasets/205). Be aware that for some CSPs (CSP4, CSP12) the accuracy of the GPS information may not be very high due to the high in-site spatial heterogeneity and dense canopy-cover. The distances were calculated in km using the function rdist.earth() in R (library: fields). For the calculation of distances, the earth's radius was set to mean earth's radius (6371km, default for function= 6378.4km at equator) to correct for the fact that the earth is not a perfect sphere. Only the lower triangle of the matrix is given here, as the upper triangle contains redundant information.

Design:

According the the metadata given in the dataset "Comparative study plot (CSP) information to be shared with all BEF-China scientists" (http://china.befdata.biow.uni-leipzig.de/datasets/205) 27 CSPs were established between May and July 2008. Species recording was performed between May and October 2008 with several visits per plot. Each CSP has a size of 30 m by 30 m. The corners of every CSP were permanently marked with magnets. Spatial information was collected using geko 201. It is unclear wheter every GPS information for each CSP comes from the south-west corner of the CSP. However, for the purpose of calculationg rough distances between the CSps the data can be judged to be of sufficient accuracy.

Spatial extent:

No information available

Temporal extent:

No information available

Taxonomic extent:

No information available

Measurement cirumstances:

Be aware that for some CSPs (CSP4, CSP12) the accuracy of the GPS information may not be very high due to the high in-site spatial heterogeneity and dense canopy-cover. It is unclear wheter every GPS information for each CSP comes from the south-west corner of the CSP. However, for the purpose of calculationg rough distances between the CSps the data can be judged to be of sufficient accuracy.

Data analysis:

This matrix can be used as additional information and covariate for spatial analyses on the CSPs. If a mean distance between all CSPs is required: 3.402 km (this can be directly extracted from the dataset in R using the following function (available in the library: gdata): mean(lowerTriangle((<CSPdistance Information Data>[,2:28],diag=F)) where <CSPdistance Informatio Data> is the R object to which the dataset was imported.)

Filter:

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Dataset column

Name:

Plot

Definition:

Cormparative Study Plot of the BEF-China Experiment. Comparative Study Plots (CSP) in the Gutianshan Nature Reserve (29º8'18" – 29º17'29" N, 118º2'14" – 118º11'12" E, Zhejiang Province Southeast China), having a size of 30x30m^2, measured on the ground. Plots were assigned to five strata according to the average age of tree layer individuals (1: < 20 yrs, 2: < 40 yrs, 3: < 60 yrs, 4: < 80 yrs, 5: > 80 yrs). Information on plot age can be obtained from the dataset "Comparative study plot (CSP) information to be shared with all BEF-China scientists" (http://china.befdata.biow.uni-leipzig.de/datasets/205).

Unit:

No information available

Datagroup:

BEF research plot name

Keywords:

CSP, Gutianshan

Values:

CSP01
CSP03
CSP05
CSP02
CSP04

Contributors:

No information available

Dataset column

Name:

CSP01

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 1 Coodinates: longitude: 118.11587 (E), latitude: 29.23957 (N).

Unit:

Datagroup:

Helper

Keywords:

CSP, location, latitude, longitude, distance

Values:

0.428800714
0.794815432
0
0.575475146
0.749068583

Contributors:

No information available

Dataset column

Name:

CSP02

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 2 Coodinates: longitude: 118.13484 (E), latitude: 29.24926 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.038583345
0.908938665
0
0.268334448
0.36686408

Contributors:

No information available

Dataset column

Name:

CSP03

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 3 Coodinates: longitude: 118.12402 (E), latitude: 29.23885 (N).

Unit:

Datagroup:

Helper

Keywords:

CSP, location, distance, GPS

Values:

0
1.120634825
1.189907044
0.703971321
1.122697004

Contributors:

No information available

Dataset column

Name:

CSP04

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 4 Coodinates: longitude: 118.12015 (E), latitude: 29.24963 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.532189414
0
0.171865353
0.830113904
0.659003627

Contributors:

No information available

Dataset column

Name:

CSP05

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 5 Coodinates: longitude: 118.1122 (E), latitude: 29.24687 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.471977334
0.394180629
0.540197621
0.67483491
0

Contributors:

No information available

Dataset column

Name:

CSP06

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 6 Coodinates: longitude: 118.14747 (E), latitude: 29.25497 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.502771306
1.341538827
1.069518585
0
1.412533589

Contributors:

No information available

Dataset column

Name:

CSP07

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 7 Coodinates: longitude: 118.14373 (E), latitude: 29.25184 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.913311016
1.264546938
0.871363415
1.99818183
1.375685075

Contributors:

No information available

Dataset column

Name:

CSP08

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 8 Coodinates: longitude: 118.11019 (E), latitude: 29.24106 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.321257808
1.034665315
0.361261604
0
0.825010802

Contributors:

No information available

Dataset column

Name:

CSP09

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 9 Coodinates: longitude: 118.11337 (E), latitude: 29.24275 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.48139942
0
0.499438407
1.122979966
1.109071359

Contributors:

No information available

Dataset column

Name:

CSP10

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 10 Coodinates: longitude: 118.15791 (E), latitude: 29.25188 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

2.622268253
2.186664667
0
3.206659531
2.221813131

Contributors:

No information available

Dataset column

Name:

CSP11

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 11 Coodinates: longitude: 118.13647 (E), latitude: 29.27383 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

2.714929752
3.063170264
2.973631471
0
2.791836262

Contributors:

No information available

Dataset column

Name:

CSP12

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 12 Coodinates: longitude: 118.1219 (E), latitude: 29.24939 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.650232918
0.538852584
0.889019793
0
1.288406839

Contributors:

No information available

Dataset column

Name:

CSP13

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 13 Coodinates: longitude: 118.11621 (E), latitude: 29.2463 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0
1.475657339
0.82477732
1.659540023
0.83337089

Contributors:

No information available

Dataset column

Name:

CSP14

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 14 Coodinates: longitude: 118.13518 (E), latitude: 29.24944 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

1.130548895
0
0.274602134
2.694330013
0.400839212

Contributors:

No information available

Dataset column

Name:

CSP15

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 15 Coodinates: longitude: 118.13106 (E), latitude: 29.24917 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

3.13465544
2.300754377
0
0.76838614
0.536534553

Contributors:

No information available

Dataset column

Name:

CSP16

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 16 Coodinates: longitude: 118.09966 (E), latitude: 29.24253 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

3.566856284
0
2.438323704
3.615045603
0.842179826

Contributors:

No information available

Dataset column

Name:

CSP17

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 17 Coodinates: longitude: 118.10828 (E), latitude: 29.24342 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

3.423767631
2.7250203
3.693838025
1.596147945
4.02660116

Contributors:

No information available

Dataset column

Name:

CSP18

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 18 Coodinates: longitude: 118.12461 (E), latitude: 29.24516 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

1.130475028
0
3.188714785
3.511519123
3.378942347

Contributors:

No information available

Dataset column

Name:

CSP19

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 19 Coodinates: longitude: 118.08389 (E), latitude: 29.28045 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.414910861
0
6.273834743
1.135591421
0.761596534

Contributors:

No information available

Dataset column

Name:

CSP20

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 20 Coodinates: longitude: 118.08803 (E), latitude: 29.28139 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

6.020341632
8.077998258
0.55274705
0
1.38870675

Contributors:

No information available

Dataset column

Name:

CSP21

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 21 Coodinates: longitude: 118.09066 (E), latitude: 29.27698 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

1.188314611
7.71644874
5.959307805
7.345845546
0

Contributors:

No information available

Dataset column

Name:

CSP22

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 22 Coodinates: longitude: 118.13723 (E), latitude: 29.2145 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

8.124484027
7.747740069
5.516667548
0
7.526511585

Contributors:

No information available

Dataset column

Name:

CSP23

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 23 Coodinates: longitude: 118.13469 (E), latitude: 29.21483 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

1.522371034
0.249224704
3.625651149
0.624010992
0

Contributors:

No information available

Dataset column

Name:

CSP24

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 24 Coodinates: longitude: 118.13155 (E), latitude: 29.21713 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0.397832435
0
3.589574999
1.275260149
NA

Contributors:

No information available

Dataset column

Name:

CSP25

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 25 Coodinates: longitude: 118.13155 (E), latitude: 29.21713 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

1.001946452
0
NA
3.359894666

Contributors:

No information available

Dataset column

Name:

CSP26

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 26 Coodinates: longitude: 118.12155 (E), latitude: 29.21489 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values:

0
NA
3.847010413

Contributors:

No information available

Dataset column

Name:

CSP27

Definition:

This column indicates the distance to the respective CSP in the respective row. Comparative Study Plot 27 Coodinates: longitude: 118.13605 (E), latitude: 29.24709 (N).

Unit:

Datagroup:

Helper

Keywords:

No information available

Values: